Valid for Submission
I00 is a billable diagnosis code used to specify a medical diagnosis of rheumatic fever without heart involvement. The code I00 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code I00 might also be used to specify conditions or terms like active rheumatic fever, annular erythema, chronic rheumatic fever, erythema marginatum, erythema marginatum in acute rheumatic fever , migratory polyarthritis, etc.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code I00:
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- arthritis, rheumatic, acute or subacute
Type 1 ExcludesType 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I00 are found in the index:
- - Erythema, erythematous (infectional) (inflammation) - L53.9
- - Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) - R50.9
- - Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) - J18.9
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Active rheumatic fever
- Annular erythema
- Chronic rheumatic fever
- Erythema marginatum
- Erythema marginatum in acute rheumatic fever
- Migratory polyarthritis
- Recurrent rheumatic fever
- Rheumatic arteritis
- Rheumatic fever
- Rheumatic fever without heart involvement
- Rheumatic joint disease
- Rheumatic pneumonia
- Rheumatoid vasculitis
- Subacute arthritis
- Subacute arthropathy
- Subacute rheumatic arthritis
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|545||CONNECTIVE TISSUE DISORDERS WITH MCC||08||2.4995|
|546||CONNECTIVE TISSUE DISORDERS WITH CC||08||1.2066|
|547||CONNECTIVE TISSUE DISORDERS WITHOUT CC/MCC||08||0.833|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert I00 to ICD-9 Code
Information for Patients
Strep is short for Streptococcus, a type of bacteria. There are several types. Two of them cause most of the strep infections in people: group A and group B.
Group A strep causes
- Strep throat - a sore, red throat. Your tonsils may be swollen and have white spots on them.
- Scarlet fever - an illness that follows strep throat. It causes a red rash on the body.
- Impetigo - a skin infection
- Toxic shock syndrome
- Cellulitis and necrotizing fasciitis (flesh-eating disease)
Group B strep can cause blood infections, pneumonia and meningitis in newborns. A screening test during pregnancy can tell if you have it. If you do, intravenous (IV) antibiotics during labor can save your baby's life. Adults can also get group B strep infections, especially if they are 65 or older or already have health problems. Strep B can cause urinary tract infections, blood infections, skin infections and pneumonia in adults.
Antibiotics are used to treat strep infections.
[Learn More in MedlinePlus]